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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1915)

    Consumer Units

    Consumer Units (481)

    Circuit Protection Devices

    Circuit Protection Devices (1069)

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    EV Circuit Protection (105)

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    SPD Surge Protection Devices (128)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (178)

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    Switch Gear (267)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Deligo MC404P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC404P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC404P3
    £27.03
    Deligo MC634P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC634P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC634P3
    £31.32
    1000V DC 1 String Solar Combiner BoxWCED | WPPV-1S1 | 1000V DC Solar Combiner Box | IP65 | 1 String In 1 String Out

    WCED | WPPV-1S1 | 1000V DC Solar Combiner Box | IP65 | 1 String In 1 String Out
    Delivery usually within 1 - 3 working days*
    SKU: WPPV-1S1
    £63.91
    1000V DC 2 String Solar Combiner Box1000V DC Dual String PV Protection with Integrated Isolator & Surge Protection

    WCED | WPPV-2S2 | 1000V DC Solar Combiner Box | IP65 | 2 String In 2 String Out
    Out of Stock
    This item cannot be back-ordered
    SKU: WPPV-2S2
    £107.22
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    1000V DC 2 String Metal Solar Combiner BoxWCED | WMPV-2S2 | 1000V DC Metal Solar Combiner Box | IP65 | 2 String In 2 String Out

    WCED | WMPV-2S2 | 1000V DC Metal Solar Combiner Box | IP65 | 2 String In 2 String Out
    Out of Stock
    This item cannot be back-ordered
    SKU: WMPV-2S2
    £104.16
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    WAGO 879-3040 Energy Meter

    WAGO | 879-3040 | Energy Meter MID26 3 Phase CT 1A/5A | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3040
    £225.25
    WAGO 879-3020 Energy MeterMID Approved 3-Phase Direct Measurement up to 65A

    WAGO | 879-3020 | Energy Meter MID 65A 3 Phase Direct Connection | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3020
    £208.25
    WAGO 879-3000 Energy MeterWAGO 879-3000 Energy Meter

    WAGO | 879-3000 | Energy Meter MID24 65A 3 Phase Direct Connection | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3000
    £208.25
    Timeguard IS3N-32AC 32A 3P IP66 Rotary Isolator Switch

    Timeguard | IS3N-32AC | 32A 3P IP66 | Rotary Isolator Switch
    3 In Stock
    More available within 1 - 3 working days*
    SKU: IS3N-32AC
    £9.75
    Timeguard IS4N-20AC 20A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-20AC | 20A 4P IP66 | Rotary Isolator Switch
    3 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-20AC
    £9.75
    Timeguard IS4N-32AC 32A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-32AC | 32A 4P IP66 | Rotary Isolator Switch
    1 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-32AC
    £10.40
    Timeguard IS4N-40AC 40A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-40AC | 40A 4P IP66 | Rotary Isolator Switch
    Delivery usually within 1 - 3 working days*
    SKU: IS4N-40AC
    £13.65
    Timeguard IS4N-63AC 63A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-63AC | 63A 4P IP66 | Rotary Isolator Switch
    1 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-63AC
    £16.25
    Timeguard IS4N-100AC 100A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-100AC | 100A 4P IP66 | Rotary Isolator Switch
    Delivery usually within 1 - 3 working days*
    SKU: IS4N-100AC
    £36.40
    Hager HR510 Earth Leakage Relay

    Hager | HR510 | Earth Leakage Relay Type A | 0.03–10A Adjustable Trip
    Delivery usually within 3 - 4 working days*
    SKU: HR510
    £337.98
    Hager MM508N Motor Protection Circuit Breaker

    Hager | MM501N | Motor Protection Circuit Breaker | 3P 0.1–0.16A
    Delivery usually within 3 - 4 working days*
    SKU: MM501N
    £154.92
    Hager MM508N Motor Protection Circuit Breaker

    Hager | MM508N | Motor Protection Circuit Breaker | 3P 2.5–4A
    Delivery usually within 3 - 4 working days*
    SKU: MM508N
    £120.04
    Hager MM509N Motor Protection Circuit Breaker

    Hager | MM509N | Motor Protection Circuit Breaker | 3P 4–6.3A
    Delivery usually within 3 - 4 working days*
    SKU: MM509N
    £127.23
    Hager MM510N Motor Protection Circuit Breaker

    Hager | MM510N | Motor Protection Circuit Breaker | 3P 6.3–10A
    Delivery usually within 3 - 4 working days*
    SKU: MM510N
    £128.44
    Hager MZ520N Auxiliary Contact

    Hager | MZ520N | Auxiliary Contact 1NC+1NO for Motor Starter
    Delivery usually within 3 - 4 working days*
    SKU: MZ520N
    £30.42

    Selection of Consumer Units, TPN Distribution Boards, Circuit Protection, Rotary Isolators, Meter Tails, Fused Switches and Accessories.

    18th Edition Consumer Units with built in SPD Surge Protection Device, stand alone SPD units, PEN loss, PME fault detection consumer units, Consumer units relocation boxes/kits, Three phase distribution boards with built in SPD and main switch.

    Thousands of products in stock ready for next day delivery. Friendly and reliable service, competitive prices.

    Circuit protection in the UK is governed by the wiring regulations outlined in the British Standard BS 7671. This standard, also known as the IET Wiring Regulations, sets out the requirements for the design, installation, and maintenance of electrical installations in the UK. Circuit protection is a crucial aspect of electrical installations to ensure the safety of people and property.

    Here are some key aspects of circuit protection according to BS 7671 and the devices commonly used in the UK market:

    1. Circuit Breakers: Circuit breakers are essential devices for protecting electrical circuits. BS 7671 specifies requirements for the selection and installation of circuit breakers. They come in various types, including:
      • Miniature Circuit Breakers (MCBs): MCBs are commonly used to protect individual circuits. They trip when there’s an overload or a short circuit.
      • Residual Current Devices (RCDs): RCDs are designed to protect against electric shock. They disconnect the circuit if they detect an imbalance in current, indicating a fault.
      • Combination RCD/MCB Devices: These devices combine the functions of both MCBs and RCDs in a single unit. They are often used for socket outlets.
    2. Fuses: While less common in modern installations, fuses may still be used for circuit protection. They work by melting when there’s an excess current, breaking the circuit.
    3. Overcurrent Protection: BS 7671 requires that circuits are protected against overcurrents. This is typically achieved through the use of circuit breakers, fuses, or other protective devices.
    4. Earthing and Bonding: Proper earthing and bonding are essential for safety. This ensures that in the event of a fault, the fault current is safely directed away from people and property.
    5. Surge Protection: Surge protection devices may be required to protect against voltage surges or lightning strikes, especially for sensitive electronic equipment.
    6. Arc Fault Detection: In certain installations, arc fault detection devices may be used to detect and disconnect circuits in the presence of dangerous arc faults.
    7. Circuit Isolation: BS 7671 also specifies requirements for circuit isolation devices such as switches and isolators.
    8. Cable Sizing: The standard provides guidelines for selecting the correct cable size to ensure that the cables can safely carry the intended load without overheating.
    9. Circuit Labels and Documentation: Proper labeling and documentation of circuits are important for maintenance and safety. BS 7671 outlines requirements for labeling and record-keeping.

    It’s important to note that regulations and standards may be updated over time, so it’s essential to consult the latest version of BS 7671 and any local regulations or codes that may apply to your specific location or type of installation. Additionally, electrical work should be carried out by qualified and competent electricians to ensure compliance with safety standards.

     






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